TY - GEN AU - R J Carpenter AU - K M Gray AU - D S Grubb AU - L J Palombo C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1973-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.73-271 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1973 TI - Field service test model ::computer-controlled U system manual for system ER -